JP2699745B2 - Electronic musical instrument - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic musical instrument that produces musical tones of various tones and performs various types (styles) of automatic accompaniment.

[0002]

2. Description of the Related Art Conventionally, in an electronic musical instrument having a keyboard and performing a manual performance such as a melody or an automatic accompaniment with various tones according to the key depression of the keyboard, the tone and the accompaniment style of the automatic accompaniment are controlled on an operation panel. Has been set by a plurality of switches provided in the system.

For example, in a certain type of electronic musical instrument, a (numeric keypad) switch for setting a tone of a keyboard and a (numeric keypad) switch for selecting an accompaniment style are separately provided. Therefore, in this type of electronic musical instrument, a tone number is input by a numeric keypad for setting a tone, and a style number is input by a numeric keypad for setting an accompaniment style to set an accompaniment style. I have.

In addition, a switch for selecting an automatic accompaniment mode is provided, and this switch switches an accompaniment mode such as single finger and fingered. The single-finger mode is a mode in which a predetermined chord is selected and designated to automatically accompaniment by pressing one or several fingers of an automatic accompaniment key (a part of the left side of the keyboard 1). On the other hand, the fingered mode is a mode in which a predetermined key is pressed by a normal chord (chord) and the accompaniment is performed by determining the name of the chord.

Other electronic musical instruments are provided with an input mode changeover switch. When the input mode changeover switch is set to the accompaniment style setting side and a numeric value is input using the numeric keypad, an accompaniment style corresponding to the input value is set. On the other hand, when the input mode changeover switch is set to the timbre setting side and a numerical value is input by the ten keys, a timbre corresponding to the input value is set.

[0006]

However, in the above-described conventional electronic musical instrument, the ten keys are separately provided on the operation panel for each setting, so that the operation panel becomes complicated and erroneous operation is performed. The problem is that it is easy to perform and the cost increases.

In the second conventional electronic musical instrument, one set of numeric keys is sufficient and the number of switches is reduced.
If the function of switching the automatic accompaniment mode is added as in the first electronic musical instrument, the number of switches is also increased, which makes it easy to perform an erroneous operation. Therefore, it is desirable to share a switch for automatic accompaniment mode and a switch for numeric input. However, in this case, the automatic accompaniment mode and the numerical value input mode are always switched in a one-to-one correspondence, and only one of the modes cannot be switched.

In the conventional electronic musical instrument described above, confirmation of an input value using a numeric keypad and confirmation of switching by an input mode switch are performed using visually appealing display means such as a light emitting diode display or a liquid crystal display. Was. However, when the place where the electronic musical instrument is used is in a dark place or when the electronic musical instrument is used by a visually disadvantaged user, there arises a problem that the above confirmation is very difficult with a visually appealing display. I was

The invention according to claim 1 has been made in view of the above-mentioned circumstances, and can perform automatic performance mode switching and corresponding switching of input parameters by a simple operation, respectively.
It is another object of the present invention to provide an electronic musical instrument that can reduce erroneous operations and is excellent in man-machine interface that leads to cost reduction.

According to the second aspect of the present invention, there is provided an electronic musical instrument which can confirm input digits when inputting numerical values of various parameters by a sensory device other than the visual sense, and does not limit a place where the user is used or a user. It is intended to provide.

[0011]

In order to achieve the above object, the invention according to claim 1 has a plurality of operators, and
Manual play function and automatic play function
Electronic musical instrument having an automatic performance
Mode or the second mode in which automatic performance can be executed
Mode selection means for designating any one of the modes, and the mode selection
When the first mode is selected by the means,
Controls the characteristics of musical sounds to be generated by operating the controls
A tone control parameter to be specified, and
Occurs when the second mode is selected by
Parameter input that specifies the style of automatic performance to be performed
Means for generating performance information in response to operation of the operator
The performance information generating means and the mode selecting means
When the mode is selected, the automatic
Instruction means for instructing start and stop, and
When the start of automatic performance sound is instructed by
According to the style specified by the meter input specification means
Performance that automatically performs by generating performance information in sequence.
Playing information from the playing means and the automatic playing means.
The second performance mode by the mode designating means.
Is switched to the first performance mode from
Keeps generating performance information of automatic performance after switching
And the parameter input designating means
Control means for changing the performance information to be designated, and the performance information
Based on the performance information output from the generating means,
Control with the tone control parameters specified by the data input means.
To generate musical tones and play from the automatic performance means.
When performance information is output, the output performance information
Sound source means for generating musical sounds based on
It is characterized by. The invention according to claim 2 is a method according to claim 2,
Enter two or more digits corresponding to the
Input designation means to be specified, and numerical value of each digit by the input designation means
Each time is designated, the corresponding digit corresponding to the designated digit is
Confirmation sound generating means for generating different sounds, and the input
The predetermined password corresponds to the numerical value input and specified by the specifying means.
Control means for controlling the parameters; and
Tone generation that generates musical tones based on controlled parameters
And a raw means. Claim 3
The invention provides a performance information generating means for generating performance information,
A first mode in which the performance can not be executed;
One mode from the second mode in which
Mode selection means for selectively designating the mode,
When the first mode is selected by the selection means
Is performance information generated by the performance information generating means.
Specify the tone control parameters that control the tone characteristics based on
Occurs when the second mode is selected.
Parameter input specification method to specify the style of automatic performance
And the second mode is selected by the mode selecting means.
Finger to stop the automatic performance when
Indication means and the start of the automatic performance sound by the indication means
Is instructed by the parameter input indicating means.
Sequentially generates performance information according to the specified style
Automatic performance means for outputting performance information from the automatic performance means.
The second performance by the mode designating means.
Switching from playing mode to first playing mode
In this case, generation of performance information of automatic performance is continued after switching.
And the parameter input designating means
Control means for changing the parameters so as to specify the parameters;
Based on the performance information output from the performance information generating means,
With the tone control parameter specified by the parameter input means
Controlling to generate musical tones,
When the performance information is output from the
Sound source means for generating musical tones based on performance information.
And features .

According to a second aspect of the present invention, an input designating means for inputting and designating a numerical value of two or more digits corresponding to a predetermined parameter one by one, and a numerical value of each digit is respectively designated by the input designating means. A confirmation sound generating means for generating a different sound corresponding to the designated digit each time, a control means for controlling the predetermined parameter corresponding to a numerical value designated by the input designating means; Music tone generating means for generating a musical tone based on the parameter controlled by the means.

[0013]

According to the first aspect of the invention, the mode is switched.
The first mode for generating a single note and the automatic performance
When the second mode to be performed is selected, the selected mode
Parameter that controls the characteristics of the tone to be generated
Parameters to select the type of automatic performance,
Further, the performance mode is switched by the performance mode switching instruction means.
Can be switched. Further, the sound source means is configured to emit the performance information.
Tone parameters included in performance information generated by the raw means
A tone signal based on a meter is generated, and
Based on the automatic performance information generated by the performance information generating means.
A tone signal is generated .

According to the second aspect of the present invention, when two or more digits are input one by one by the input designating unit, the confirmation sound generating unit generates different sounds corresponding to the input digits. The control means controls a corresponding parameter based on the numerical value input and specified by the input specifying means, and the musical tone generating means generates a musical tone based on the controlled parameter.

[0015]

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a configuration of one embodiment of the present invention. In this figure, a keyboard 1 is composed of a plurality of white keys and black keys arranged in a predetermined order, and each key is provided with a sensor for detecting key depression and key release. A key arranged in a predetermined area (left key area) on the left side of the keyboard 1 is used in the same manner as a normal key, and in a special case, is also used as a chord input key.

In response to the output signal from the sensor, the key detection circuit 2 generates a key-on signal indicating that the corresponding key has been pressed, a key code indicating which key has been pressed,
Also, performance information such as a key-off signal indicating that the key has been released is supplied to the CPU 6 via the data bus DB.

The performance mode switch 3 is
In this embodiment, the rotary switch comprises one rotary switch having four contacts.
The contacts of the rotary switch, except for one contact, are each grounded via a resistor and are connected to the switch detection circuit 5.

The above-mentioned contact provided on the rotary shaft of the rotary switch is connected to a power supply Vcc. The play mode changeover switch 3 switches between a power-off mode, a manual play mode, and two automatic play modes, a single finger mode and a fingered chord mode. In other words, the contacts of the rotary switch are connected to the respective switches. It corresponds to the mode one-to-one,
One switch switches between the various modes. The manual performance mode is not an automatic accompaniment mode, but in this embodiment, the automatic accompaniment of only the rhythm performance is started and stopped in conjunction with the start / stop switch. In this mode, a chord cannot be specified, and only rhythm accompaniment is used. However, step SA shown in FIG.
If the contents of the initial setting in 1 are appropriately set, a chord accompaniment can be added.

The other switch group 4 includes, for example,
It comprises a ten key 4a (see FIG. 2) for inputting a tone number and an accompaniment style number, and a start / stop key 4b (see FIG. 2) for instructing start and stop of automatic accompaniment.
The performance mode changeover switch 3 and the other switch groups 4 are arranged on the operation panel PN of the electronic musical instrument.

Next, the switch detection circuit 5 detects the on / off state of the performance mode changeover switch 3 and the other switch groups 4 and supplies this to the CPU 6 via the data bus DB.

The CPU 6 controls the operation of the entire electronic musical instrument, and performs various processes according to a predetermined program stored in the program memory 7. The program memory 7 is, for example, a ROM (Read Only Memory)
The above-mentioned predetermined program is written. The working memory 8 has a RAM (Random Access Memory).
ory), and is used as a storage area for storing various data generated by the processing by the CPU 6 and the like.

The timer 9 generates an interrupt signal at predetermined time intervals, and supplies this to the CPU 6. Further, the automatic accompaniment device 10 automatically generates an accompaniment sound signal including the timbre data of the accompaniment sound according to the automatic accompaniment parameters supplied from the CPU 6, and supplies this to the tone generator 11. The tone generator 11 generates a tone signal according to the automatic accompaniment sound data, and supplies the tone signal to the sound system 12. The tone generator 11 also generates, in addition to the automatic accompaniment sound, a tone signal according to a normal manual performance on the keyboard 1 and supplies the tone signal to the sound system 12.

The sound system 12 has a D / D (not shown).
An A converter or the like is provided to convert the tone signal into an analog signal, perform level adjustment and the like, and then generate a tone using a speaker or the like.

Next, FIG. 2 shows a top view of the entire electronic musical instrument. In this figure, on the operation panel PN, the above-mentioned performance mode changeover switch 3, numeric keypad 4a and start / stop key 4b are arranged at predetermined positions. The above-mentioned keyboard 1 is provided on the playing side of the electronic musical instrument. A knob 3a is fitted on the rotating shaft of the performance mode changeover switch 3. By operating the knob 3a, four modes are provided: a power-off mode, a manual performance mode, a single finger mode, and a fingered mode. Is switched.

In the operation panel PN, a list L1 is provided to make it easier for the player to confirm which tone and which accompaniment style the numerical values input from the ten keys 4a are when selecting a tone and an accompaniment style. And L2 are displayed.

Next, the correspondence between the play mode and the input mode according to the mode by the play mode changeover switch 3 in the present electronic musical instrument will be described with reference to FIG. In this figure, first, when the performance mode changeover switch 3 is set to "manual" shown in FIG. 2, the performance mode becomes the manual performance mode, and the entire keyboard of the keyboard 1 corresponds to the manual performance. At this time, when a numerical value is input from the ten keys 4a, the numerical value is determined to correspond to the tone color number, and the tone color is changed.

When the performance mode changeover switch 3 is set to "single finger", the performance mode becomes the single finger mode, and the left key range of the keyboard 1 is determined as a simple chord input, and the chord name is determined. To detect
Based on this, automatic accompaniment is performed, and the right key range corresponds to manual performance. At this time, if a numerical value is input from the numeric keypad 4a, the input value is determined to correspond to the accompaniment style number, and the type of accompaniment is changed.

Further, when the performance mode changeover switch 3 is set to "fingered", the performance mode is
The mode becomes the fingered chord mode, the key depression in the left key range of the keyboard 1 is determined as a normal chord input, and the chord name is detected.
Automatic accompaniment is performed based thereon, and the right key range corresponds to manual performance. At this time, when a numerical value is input from the numeric keypad 4a, the input value corresponds to the accompaniment style number as in the single finger mode described above. Is determined, and the type of accompaniment is changed.

Although details will be described in the description of the operation, in the present invention, when the mode is switched by the performance mode changeover switch 3 during the automatic accompaniment, the input state of the timbre and the accompaniment is changed, but the performance mode is changed. Not changed. Therefore, during the automatic accompaniment, it is possible to input performance information such as timbres and sound effects while continuing the current performance.

Next, the operation of this embodiment will be described with reference to the flowcharts shown in FIGS. (1) Manual mode First, when the knob 3a of the performance mode changeover switch 3 shown in FIG. 2 is switched from "POWEROFF" to "manual", the electronic musical instrument is turned on. When the power is turned on, the CPU 6 executes a main routine shown in FIG.

In the main routine, first, at step SA
In step 1, initialization such as resetting various variables described later is performed. Next, in the main routine, in steps SA2, SA4, SA6 and SA8, it is determined whether or not there is an event for the keyboard 1 and various switches. At this point, the performance mode changeover switch 3 has been switched to "manual", so that the determination result in step SA4 for determining whether or not there is an event of the performance mode changeover switch 3 is "YES", and the process proceeds to step SA5.

At step SA5, a performance mode changeover switch routine shown in FIG. 5 is executed. In this routine, various mode variables are set according to the selected state of the performance mode changeover switch 3. First, in step SB1, it is determined whether or not the mode is the manual performance mode. Since the performance mode changeover switch 3 is currently at the "manual" position, the result of the determination in step SB1 is "YES", and the routine proceeds to step SB2. In step SB2, "0" is substituted for a mode variable MD indicating which mode is selected.

Next, the process proceeds to Step SB6, where it is determined whether or not the automatic accompaniment variable RUN indicating the state of the automatic accompaniment start / stop switch 4b is "0". The automatic accompaniment variable RUN becomes “0” when the stop of the automatic accompaniment is instructed, and becomes “1” when the start of the automatic accompaniment is instructed. In this case, since the automatic accompaniment start / stop switch 4b has not been operated yet, the automatic accompaniment variable RUN is “0”. Therefore, the result of the determination at step SB6 is "YES", and the routine proceeds to step SB7.

At Step SB7, the input mode variable SM
D and the performance mode variable RMD, the mode variable MD
Substitute the value of In this case, since the value of the mode variable MD is “0”, the input mode variable SMD and the performance mode variable RMD also become “0”. Next, step S
Proceeding to B9, "0" is substituted for the digit variable N indicating which digit the input value from the numeric keypad 4a corresponds to. This variable N is “0” when the input value is for one digit, and is “1” when the input value is for ten digits.

When the processing in step SB9 is completed,
The performance mode changeover switch routine ends, and the process returns to the main routine shown in FIG. In the main routine,
The loop of steps SA2 to SA8 described above is repeatedly executed.

In this state, the timbre can be set. That is, in this state, when a numerical value is input from the numeric keypad 4a, the determination result of step SA8 for determining whether or not there is a numeric key event becomes "YES", and
Proceed to step SA9. In this step SA9, FIG.
Is executed. Note that the numeric keypad input in this embodiment is always a two-digit input. In other words, only two-digit input values are always held. The odd-numbered input value is always input as a 10-digit value, and the even-numbered input value is always 1
Is entered as the value of the digit.

In the numeric key routine, first, in step S
In C1, it is determined whether or not the variable N is “0”. In this case, since the variable N is “0”, step S
The result of the determination in C1 is "YES", and the
Proceed to C2. In step SC2, the input value from the numeric keypad 4a is multiplied by 10 and then assigned to the parameter variable PRM. This parameter variable PRM stores the above input value, and corresponds to step SA of the main routine described above.
At 1, it is initialized to "0". Therefore, in step SC2, the input value from the numeric keypad 4a is substituted into the parameter variable PRM as a value of ten digits.

Next, the flow advances to step SC3, to indicate that the input is for the tenth digit.
The click sound corresponding to "3" is pronounced. Step SC4
Then, the variable N is incremented by “1”. This is to indicate that the next input value by the ten key 4a corresponds to the 1 digit. Next, in step SC5,
After substituting “200” for the time variable TIME, the ten-key routine is terminated, and the process returns to the main routine. In addition,
The timer variable TIME is a variable for canceling the input value up to that time when there is no operation for more than 2 seconds after inputting to the digit of 10; in this embodiment, the value “200” is set to 2 seconds Time.

The count of the time variable TIME is shown in FIG.
The timer interrupt routine shown in FIG. This timer interruption routine is a routine executed by interruption by the timer 9 at predetermined time intervals. First, in step SD1, it is determined whether or not the digit variable N is "1". In this case, the value "1" is substituted for the digit variable N in step SC4 of the ten-key routine described above. Therefore, the result of the determination in step SD1 is "YES", and the flow proceeds to step SD2.

At step SD2, it is determined whether or not the above-mentioned timer variable TIME is larger than "0". In this case, since the value of the timer variable TIME is still “200”, the result of the determination in step SD2 is “YE
S "and goes to step SD3. In step SD3, the timer variable TIME is decremented by "1". Thereafter, the routine ends, and the process returns to the process before interruption.

As described above, the timer interrupt routine is executed at predetermined time intervals, as described above.
, The timer variable TIME is sequentially decremented. Then, when the next operation by the ten key 4a is not performed for 2 seconds or more, or when a rhythm sound start / stop switch or performance mode switch 3
Is not operated, the timer variable T
The value of the IME becomes “0”. As a result, step SD2
Is "NO", and the flow proceeds to step SD4. In step SD4, after setting the digit variable N to "0", the routine ends, and the process returns to the process before interruption.

When the numeric keypad 4a is operated again in this state, the result of the determination in step SC1 of the numeric key routine shown in FIG. 6 becomes "YES", so that the above-described steps SC2 to SC5 are executed again. Therefore, the input value from the ten key 4a is again changed to the value corresponding to the tenth digit in step SC2 as the parameter variable PR.
Substituted into M.

On the other hand, before the result of the determination at step SD2 of the timer interrupt routine becomes "NO", that is, when the next input by the ten key 4a is performed within two seconds, the flow proceeds to step SC1 of the ten key routine. The determination result is "NO", and the flow proceeds to step SC6. In step SC6, the input value of the ten key 4a is added to the value of the parameter PRM, and the result is substituted into the parameter variable PRM. Therefore, the current input value is the one digit of the parameter variable PRM,
The value is added to the input value substituted as the digit of 0, and substituted into the parameter variable PRM. Therefore, twice input by the ten key 4a is substituted into the parameter variable PRM as a two-digit input value.

Next, the process proceeds to step SC7, in which a click sound corresponding to the key "E4" is generated in order to inform that the current input value is an input for the one digit of the parameter variable PRM. Then, in step SC8, “0” is substituted for the variable N. Next, step SC
Then, the process proceeds to step S9, where it is determined whether or not the input mode variable SMD indicating the input mode is “0”. In this case, since the value "0" is substituted for the input mode variable SMD in step SB7 of the above-described performance mode changeover switch routine, the determination result in step SC9 is "YES", and the process proceeds to step SC10.

In step SC10, the timbre variable VOIC
The value of the parameter variable PRM, that is, the input value from the numeric keypad 4a is substituted into E. In other words, the input value from the numeric keypad 4a is processed as a tone color number specifying a tone color. When the process in step SC10 ends, the ten key routine is ended, and the process returns to the main routine shown in FIG. In the main routine, the loop of steps SA2 to SA8 described above is repeatedly executed.

Here, when the keyboard 1 is operated, the result of the determination in step SA2 for determining the presence / absence of a key event becomes "YES", and the flow proceeds to step SA3. At step SA3, a key event routine shown in FIG. 8 is executed.

In the key event routine, first, in step SE1, a performance mode variable R indicating a performance mode is set.
It is determined whether or not MD is “0”. Since the value “0” is assigned to the performance mode variable RMD in step SB7 of the above-described performance mode changeover switch routine, the result of the determination in step SE1 is “YE
S ", and proceeds to step SE3. In step SE3, the key code having the event is sounded or muted according to the timbre variable VOICE set by the ten-key routine.

As described above, when the performance mode changeover switch 3 is at the "manual" position, the electronic musical instrument is in the manual performance mode, and all keys of the keyboard 1 are played with a tone corresponding to the input value from the ten key 4a. In this area, a manual performance is performed in accordance with the key pressed and released by the player. When the step SE3 ends, the key event routine ends, the process returns to the main routine shown in FIG. 4, and the loop of steps SA2 to SA8 is repeatedly executed.

(2) Single Finger Mode Next, a case where the performance mode changeover switch 3 is switched from the above-mentioned "manual" position to "single finger" to set a single finger mode which is one of the automatic accompaniment modes will be described. . When the performance mode switch 3 is switched to the "single finger" position, the result of the determination in step SA4 of the main routine becomes "Y".
ES ”and the process proceeds to Step SA5. Step SA5
Then, the above-described performance mode changeover switch routine shown in FIG. 5 is executed.

In this case, the performance mode switch 3
Has selected the single finger mode, the result of the determination in step SB1 is "NO", and the flow proceeds to step SB3. In step SB3, it is determined whether the mode is the single finger mode. This step SB
Naturally, the determination result in 3 is “YES”, and the process proceeds to Step SB4.

In step SB4, "1" is substituted for the mode variable MD, and the flow advances to step SB6. In this case, since the automatic accompaniment start / stop switch 4b has not been operated yet, the automatic accompaniment variable RUN is “0”. Therefore, the result of the determination at step SB6 is "YES", and the routine proceeds to step SB7. In step SB7, the value "1" of the mode variable MD is substituted for each of the input mode variable SMD and the performance mode variable RMD. Next, the process proceeds to Step SB9, and the value “0” is set in the digit
Is assigned.

When the processing in step SB9 is completed,
The performance mode changeover switch routine ends, and the process returns to the main routine shown in FIG. In the main routine,
The loop of steps SA2 to SA8 described above is repeatedly executed.

In this state, it is possible to set an accompaniment style. That is, in this state, when a numerical value is input from the numeric keypad 4a, the determination result of step SA8 for determining whether or not there is a numeric key event is “YES”.
Then, the process proceeds to Step SA9, and the ten-key routine shown in FIG. 6 is executed. First, in steps SC1 to SC5, the input value from the ten key 4a is
The tenth digit of the RM is substituted, and a click sound corresponding to the key “E3” indicating that it is the tenth digit is emitted. In addition, “200” is substituted for the timer variable TIME, and the non-input time is measured by the above-described interrupt routine.

If the result of the determination made in step SD2 of the timer interrupt routine is "NO", that is, if the next input by the ten key 4a is performed within two seconds, the result of determination in step SC1 of the ten key routine is changed to ""NO", the process proceeds to Step SC6, the input value by the ten key 4a is added to the value of the parameter variable PRM, and the result is substituted into the parameter variable PRM. Therefore, twice input by the ten key 4a is 2
It is substituted into the parameter variable PRM as a digit input value.

Next, at step SC7, a click sound corresponding to the key "E4" is produced in order to inform that the current input value is an input for the one digit of the parameter variable PRM. Proceed to
The value “0” is substituted for the variable N. Next, step SC9
In, it is determined whether or not the input mode variable SMD indicating the input mode is “0”. In this case, since the value "1" is assigned to the input mode variable SMD in step SB7 of the above-described performance mode changeover switch routine, the determination result in step SC9 is "NO", and the process proceeds to step SC11.

In step SC11, the accompaniment variable STYL
, The value of the parameter variable PRM, that is, the numeric keypad 4
The input value from a is substituted. In other words, numeric keypad 4
The input value from a is processed as an accompaniment style number designating an accompaniment style. Next, the process proceeds to step SC12 to output the contents of the accompaniment variable STYL to the automatic accompaniment device 10. The automatic accompaniment device 10 sets the accompaniment style according to the contents of the accompaniment variable STYL, that is, the accompaniment style number input using the numeric keypad 4a.

Next, in step SC13, it is determined whether or not the automatic accompaniment variable RUN is "1". In this case, since the automatic accompaniment start / stop switch 4b has not been operated yet, the automatic accompaniment variable RUN is "0". Therefore, the result of the determination in step SC13 is “NO”, the tenkey rutin is terminated,
It returns to the main routine shown in FIG. In the main routine, the loop of steps SA2 to SA8 described above is repeatedly executed.

Here, when the keyboard 1 is operated, the result of the determination in step SA2 for determining the presence / absence of a key event becomes "YES", the flow advances to step SA3, and the key event routine shown in FIG. 8 is executed. In this case, since the value "1" is assigned to the performance mode variable RMD in step SB7 of the above-described performance mode changeover switch routine, step S7 of the key event routine is executed.
The decision result in E1 is "NO", and the
Proceed to 2.

In step SE2, it is determined whether or not the event has occurred with a key in the right key range (a key range other than the accompaniment keyboard on the right side of the keyboard 1). Here, if an event occurs due to a key in the right key range, the result of the determination in step SE2 is "YES", the flow advances to step SE3, and the key code having the event is set by the numeric key routine. Tone generator 11 and sound system 1 according to timbre variable VOICE
2, a sound generation or mute processing is performed.

As described above, if the key in the right key range of the keyboard 1 is operated (key pressed or released) when the performance mode changeover switch 3 is at the "single finger" position,
A manual performance is performed in accordance with a key press and release in the right key range. When the step SE3 ends, the key event routine ends, the process returns to the main routine shown in FIG. 4, and the loop of steps SA2 to SA8 is repeatedly executed.

On the other hand, when the key in the left key range of the keyboard 1 is depressed, the result of the determination in step SE2 is "N
O ", and the process proceeds to Step SE4. In step SE4, it is determined whether or not the performance mode variable RMD is "1". In this case, the performance mode variable RMD contains step SB7 of the performance mode changeover switch routine described above.
In step SE, the value "1" is assigned in step SE.
The result of the determination in step 4 is "YES", and step SE
Go to 5.

In step SE5, a simplified chord is detected,
That is, chord detection is performed based on the single finger rule. The technique and rules for detecting chords using a single finger are described, for example, in JP-B-62-55680.
Since they are described in detail in the above items, they will not be described here.
Next, the process proceeds to step SE7, where a value indicating the root of the chord detected in step SE5 is substituted for the chord root variable RT, and the same step S is substituted for the chord type variable TP.
Types of chords detected at E5 (major, minor,
7th, minor 7th, etc.). Next, the process proceeds to step SE8.

In step SE8, the contents of the chord root variable RT and the chord type variable TP are output to the automatic accompaniment device 10. The automatic accompaniment device 10 sets musical tone information of musical tones constituting the chord in order to perform automatic accompaniment with a chord determined by the chord root variable RT and the chord type variable TP.

As described above, when the performance mode changeover switch 3 is at the "single finger" position,
When a key in the left key range of the keyboard 1 is depressed, an automatic performance is performed with a chord determined based on the single finger rule in accordance with the depressed key. Then, the above step SE8
Is completed, the key event routine is terminated, and the process returns to the main routine shown in FIG.
To SA8 are repeatedly executed.

As described above, when the performance mode changeover switch 3 is at the "single finger" position, the keyboard 1
Is operated (key pressed or released), a manual performance corresponding to the key pressed / released in the right key range is performed, and when the key in the left key range of the keyboard 1 is pressed, Automatic performance is performed with a chord determined based on the single finger rule in accordance with the key depression.

(3) Fingered Chord Mode Next, the performance mode changeover switch 3 is switched from the above-mentioned "single finger" position to "fingered" to set a fingered chord mode which is one of the automatic accompaniment modes. Will be described. When the performance mode switch 3 is switched to the “fingered” position,
If the result of the determination in step SA4 of the main routine is “YE
S ", and the process proceeds to Step SA5. In step SA5, the above-described performance mode changeover switch routine shown in FIG. 5 is executed.

In this case, the performance mode switch 3
Has selected the fingered code mode, the result of determination in steps SB1 and SB3 is "NO", and the flow proceeds to step SB5. In step SB5, "2" is substituted for the mode variable MD, and the process proceeds to step SB6. At this time, the automatic accompaniment start / stop switch 4b
Is not yet operated, so the automatic accompaniment variable RUN
Is “0”. Therefore, the result of the determination in step SB6 is "YES", and in step SB7, the input mode variable SMD and the performance mode variable RM
The value “2” of the mode variable MD is substituted for each of D. Next, the routine proceeds to step SB9, where the value “0” is substituted for the digit variable N.

When the processing in step SB9 is completed,
The performance mode changeover switch routine ends, and the process returns to the main routine shown in FIG. In the main routine,
The loop of steps SA2 to SA8 described above is repeatedly executed.

In this state, it is possible to set the accompaniment style in the same manner as in the single finger mode described above. That is, in this state, the ten key 4
When a numerical value is input from a, the result of determination in step SA8 for determining the presence or absence of a numeric key event is "YES", the flow advances to step SA9, and the numeric key routine shown in FIG. 6 is executed. In the ten-key routine, as in the case of the single-finger mode described above, two-time input from the ten-key 4a is used as a two-digit input value for the parameter variable P.
Assigned to RM.

That is, the input value from the ten key 4a is
The automatic accompaniment apparatus 10 processes the accompaniment style number specifying the accompaniment style, and sets the accompaniment style according to the accompaniment style number. Step S
The result of the determination at C13 is "NO", the tenkey routine is terminated, and the routine returns to the main routine shown in FIG.
In the main routine, the aforementioned steps SA2 to SA8
Loop is repeatedly executed.

Here, when the keyboard 1 is operated, the result of the determination in step SA2 for determining the presence / absence of a key event becomes "YES", the flow advances to step SA3, and the key event routine shown in FIG. 8 is executed. In this case, since the value "2" is assigned to the performance mode variable RMD in step SB7 of the above-described performance mode changeover switch routine, step S7 of the key event routine is executed.
The decision result in E1 is "NO", and the
Proceed to 2.

If the event is caused by a key in the right key range of the keyboard 1, the result of the determination in step SE2 is "YES", and the flow advances to step SE3. The tone generator 11 and the sound system 12 perform sound generation or mute processing in accordance with the timbre variable VOICE set by the user.

On the other hand, if the event is caused by a key in the left key range of the keyboard 1, the result of the determination in step SE2 is "NO", and the flow advances to step SE4. In this case, since the value "2" is assigned to the performance mode variable RMD in step SB7 of the above-described performance mode changeover switch routine, the determination result in step SE4 is "NO", and the process proceeds to step SE6.

At step SE6, a chord name having key codes of all keys being depressed as constituent sounds is detected. Next, proceeding to step SE7, a value indicating the root of the chord based on the chord name detected in step SE6 is substituted for the chord root variable RT, and the chord type variable TP is detected in step SE6. Substitute a value indicating the type of chord. Next, proceeding to step SE8, the automatic accompaniment device 10
And outputs the contents of the chord root variable RT and the chord type variable TP. The automatic accompaniment device 10 sets musical tone information of musical tones constituting the chord in order to perform automatic accompaniment with a chord determined by the chord root variable RT and the chord type variable TP.

As described above, if the key in the left key range of the keyboard 1 is depressed by the fingering when the performance mode changeover switch 3 is at the "fingered" position, a chord corresponding to the depressed key is generated. Will be played. Then, the above step SE
8 ends, the key event routine ends,
Returning to the main routine shown in FIG.
The loop of 2 to SA8 is repeatedly executed.

As described above, when the performance mode switch 3 is at the "single finger" position, the keyboard 1
Is operated (key depression or key release), a manual performance corresponding to the key depression / release of the right key range is performed in the same manner as in the manual performance mode described above, and the keyboard 1 is also played.
Is operated by fingering, the depressed chord is played.

(3) Automatic Accompaniment Next, in the above-described manual performance mode, single finger mode, and fingered chord mode,
The case where the automatic accompaniment start / stop switch 4b is operated will be described.

When the automatic accompaniment start / stop switch 4b is operated in each of the modes, ie, the manual performance mode, the single finger mode, and the fingered chord mode, the presence / absence of an event of the automatic accompaniment start / stop switch 4b of the main routine is determined. Is "YES" in step SA6 for determining
Proceeding to step SA7, an automatic accompaniment start / stop routine shown in FIG. 9 is executed.

In the automatic accompaniment start / stop routine, first, in step SF1, the automatic accompaniment variable RU
N is inverted. That is, the automatic accompaniment variable RUN is
In the case of "0", it becomes "1", and in the case of "1", it becomes "0". In this case, if the automatic accompaniment variable RUN is pressed for the first time, the automatic accompaniment variable RUN is set to “1”.
Becomes Next, the routine proceeds to step SF2, where it is determined whether or not the automatic accompaniment variable RUN is “0”. As described above, since the automatic accompaniment variable RUN is “1”, the result of the determination in step SF2 is “NO”, and the flow proceeds to step SF3.

In step SF3, a mute process is performed on the key code in the left key range. This is because if there is a key code that is being sounded at this time, it is inconvenient to perform chord detection. Next, step SF
Proceeding to 4, the start signal for instructing the automatic accompaniment apparatus 10 to start automatic accompaniment is output. When the start signal is supplied, the automatic accompaniment device 10 outputs to the tone generator 11 automatic accompaniment sound data in accordance with the accompaniment style set by the above-described processing.

The tone generator 11 generates an automatic accompaniment tone signal in accordance with the automatic accompaniment sound data, and supplies this to the sound system 12. Sound system 12
Converts a musical tone signal of an automatic accompaniment into an analog signal by a D / A converter, performs level adjustment and the like, and then sounds as an accompaniment tone through a speaker or the like.

Then, the flow advances to step SF8 to set the digit variable N to "0" and cancel the input by the ten keys 4a. Thereafter, the process returns to the main routine shown in FIG. 4, and the loop of steps SA2 to SA8 is repeatedly executed.

By the way, if an input is made with the numeric keypad 4a during the execution of the automatic accompaniment, the numeric key routine shown in FIG. 6 described above is similarly executed, and the input value from the numeric keypad 4a is selected by the performance mode switch 3 at that time. Is processed as the performance information of the input mode corresponding to the selected mode, that is, the tone color number or the accompaniment style number, and the tone color and the accompaniment style are changed.

On the other hand, if the performance mode changeover switch 3 is switched to a different mode during execution of the automatic accompaniment, the result of the determination in step SB6 of the performance mode changeover switch routine shown in FIG. 5 becomes "NO", and the routine proceeds to step SB8. In step SB8, the input mode variable S
The value of the mode variable MD is substituted for only MD. When the input mode variable SMD changes, the determination in step SC9 of the numeric key routine shown in FIG. 6 is performed on the changed input mode variable SMD.

As a result, the input mode shown in FIG. 3 changes according to the position of the performance mode changeover switch 3 after the change. For example, when the mode is changed from the manual mode to the single finger mode, the input value by the ten keys 4a is changed from the tone number. It becomes the accompaniment style number. On the other hand, since the performance mode variable RMD does not change, the performance mode shown in FIG. 3 does not change. That is, during execution of the automatic accompaniment, the performance mode changeover switch 3 does not work for mode switching, but works only for input mode switching.

Next, when the automatic accompaniment start / stop switch 4b is depressed to stop the automatic accompaniment, the automatic accompaniment start / stop routine shown in FIG. 9 is executed again. First, in step SF1, the automatic accompaniment variable RUN is inverted to “0”. Therefore, the determination result in the next step SF2 is “YES”, and the flow proceeds to step SF5. In step SF5, a process of silencing the automatic accompaniment performed so far is performed.

Then, the process proceeds to a step SF6, wherein a stop signal is outputted to the automatic accompaniment device 10, and the tone generator 1
The output of the automatic accompaniment sound data to 1 is stopped. And
In step SF7, the value of the input mode variable SMD is substituted for the performance mode variable RMD. This is a process which is performed for a process in which only the input mode is changed and the performance mode is not changed when the selection by the performance mode changeover switch 3 is changed during the automatic accompaniment described above. Match the mode and prepare for the next process to be performed again.

Then, the flow advances to step SF8 to set the digit variable N to "0" and cancel the input by the ten key 4a. Thereafter, the process returns to the main routine shown in FIG. 4, and the loop of steps SA2 to SA8 is repeatedly executed.

The performance mode changeover switch 3 in this embodiment is not limited to a rotary switch.
A slide switch or the like may be used. The performance mode is
The present invention is not limited to the manual mode, the single finger mode, and the fingered chord mode. For example, a performance storage mode for storing a performance of a player, a performance reproduction mode for reproducing stored performance information, and the like may be used.

The input value by the ten keys 4a is not limited to the tone color number and the accompaniment style number, but may be a value for a sound effect such as a reverb depth and a sustain length. Further, in the above-described embodiment, in the input of numerical values using the numeric keypad 4a, the difference between the input of the 1st digit and the input of the 10th digit is notified by generating click sounds having different pitches. Alternatively, different timbres or different tones may be generated.

[0091]

As described above, according to the first aspect of the present invention, both the automatic performance mode and the parameter input by the parameter inputting means are switched together with the switching of the mode switching means. Therefore, there is no need to provide each switching means, which leads to cost reduction. When the automatic performance is stopped, the correspondence between the automatic performance mode and the input parameter is switched in accordance with the operation of the mode switching means. However, during the automatic performance, the automatic performance is switched along with the operation of the mode switching means. Since the performance mode is not switched and the correspondence of the input parameters is switched, automatic performance mode switching and input parameter correspondence switching can be performed. In addition, this means that a part of the switching operation leading to an erroneous operation cannot be performed, so that the erroneous operation can be reduced.

According to the second aspect of the present invention, each time a numerical value of the digit as the input designating means is inputted, a different sound corresponding to the digit is emitted, so that the digit of the numerical value inputted by the sound is outputted. It is easy to use for visually impaired users. In addition, it is easy to use even in a dark place.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of one embodiment of the present invention.

FIG. 2 is a top view showing an operation panel surface of the electronic musical instrument of the embodiment.

FIG. 3 is a correspondence diagram showing a correspondence between a performance mode and an input mode according to a mode by a performance mode changeover switch 3 in the electronic musical instrument of the embodiment.

FIG. 4 is a flowchart for explaining an operation of a main routine in the embodiment.

FIG. 5 is a flowchart for explaining the operation of a performance mode changeover switch routine in the embodiment.

FIG. 6 is a flowchart illustrating the operation of a numeric key routine in the embodiment.

FIG. 7 is a flowchart for explaining the operation of a timer interrupt routine in the embodiment.

FIG. 8 is a flowchart for explaining the operation of a key event routine in the embodiment.

FIG. 9 is a flowchart for explaining the operation of an automatic accompaniment start / stop routine in the embodiment.

[Explanation of symbols]

1 ... keyboard, 2 ... key detection circuit, 3 ... performance mode switching switch (mode switching means), 4 ... other switch group, 4a ... numeric keypad (parameter input designating means, input designating means), 4b ... ... Automatic accompaniment start / stop switch (start and stop means), 5... Switch detection circuit, 6... CPU (performance mode switching instructing means, control means), 7... Program memory, 8... Working memory, 9. Timer 10, automatic accompaniment device (automatic performance information generating means), 11 tone generator (confirmation sound generating means, musical sound generating means), 12 sound system.

Claims (3)

(57) [Claims] A plurality of operating elements for operating the operating elements;
Electronic music with manual and automatic performance functions
In the first mode or automatic performance where automatic performance cannot be performed
To specify any of the second modes that can be executed
A first mode is selected by the selection unit and the mode selection unit;
The music that should be generated by the operation of the
Specify tone control parameters that control the characteristics of the sound,
The second mode is selected by the mode selection means
Sometimes, a parameter that specifies the style of automatic performance that occurs
Meter input designating means, and performance information for generating performance information in response to operation of the operator
A second mode is selected by the generation means and the mode selection means,
To start and stop automatic performance sound when
Instruction means, and the start of automatic performance sound is instructed by the instruction means.
Is specified by the parameter input designating means.
By automatically generating performance information according to the style
Automatic performance means for performing dynamic performance, and when the performance information is output from the automatic performance means,
From the second performance mode to the first
When the mode is switched to the performance mode, the
Thereafter, the generation of automatic performance information continues, and
Parameter input designating means for specifying the tone parameter
Control means for changing the performance information based on the performance information output from the performance information generating means.
The tone control parameter specified by the parameter input means.
The tone is controlled by the meter and the automatic
When performance information is output from the performance means,
Sound source means for generating musical tones based on the performance information
An electronic musical instrument, comprising: 2. The method according to claim 2, wherein the number of digits is two or more corresponding to a predetermined parameter.
Input designating means for designating a numerical value one digit at a time, and a numerical value of each digit designated by the input designating means.
Generate different sounds corresponding to the designated digit
Confirming sound generating means, and corresponding to the numerical value specified by the input specifying means.
A control Gosuru control means a predetermined parameter, based on the parameters controlled by the control means
And a tone generating means for generating a tone.
Electronic musical instrument . 3. Performance information generating means for generating performance information.
And a first mode in which automatic performance cannot be executed.
One from the second mode in which the dynamic performance can be executed
Mode selecting means for selectively designating a mode;
When the first mode is selected by the mode selection means
Shows performance information generated by the performance information generating means.
Tone control parameters that control the characteristics of musical tones based on
Specified and the second mode is selected,
Parameter input that specifies the style of automatic performance to be performed
Means, and the second mode is selected by the mode selecting means.
Instruction means for instructing the start of automatic performance when stopped
The start of the automatic performance sound is instructed by the instructing means.
Is specified by the parameter input / pointing means.
Performance that sequentially generates performance information according to the selected style
Means for outputting performance information from the automatic performance means,
From the second performance mode to the first
When the mode is switched to the performance mode, the
Thereafter, the generation of automatic performance information continues, and
Parameter input designating means for specifying the tone parameter
Control means, and performance information output from the performance information generating means.
The tone is controlled by the tone control parameter designated by the parameter input means.
The parameter is generated by controlling the
When the performance information is output from the
An electronic musical instrument comprising: sound source means for generating musical tones based on performance information .